iris: Add batch_check_for_reset() to kmd backend

Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21700>

src/gallium/drivers/iris/i915/iris_kmd_backend.c

@@ -30,6 +30,7 @@
 #include "drm-uapi/i915_drm.h"
 
 #include "iris/iris_bufmgr.h"
+#include "iris_batch.h"
 
 #define FILE_DEBUG_FLAG DEBUG_BUFMGR
 
@@ -213,6 +214,32 @@ i915_gem_mmap(struct iris_bufmgr *bufmgr, struct iris_bo *bo)
       return i915_gem_mmap_legacy(bufmgr, bo);
 }
 
+static enum pipe_reset_status
+i915_batch_check_for_reset(struct iris_batch *batch)
+{
+   struct iris_screen *screen = batch->screen;
+   enum pipe_reset_status status = PIPE_NO_RESET;
+   struct drm_i915_reset_stats stats = { .ctx_id = batch->ctx_id };
+
+   if (intel_ioctl(screen->fd, DRM_IOCTL_I915_GET_RESET_STATS, &stats))
+      DBG("DRM_IOCTL_I915_GET_RESET_STATS failed: %s\n", strerror(errno));
+
+   if (stats.batch_active != 0) {
+      /* A reset was observed while a batch from this hardware context was
+       * executing.  Assume that this context was at fault.
+       */
+      status = PIPE_GUILTY_CONTEXT_RESET;
+   } else if (stats.batch_pending != 0) {
+      /* A reset was observed while a batch from this context was in progress,
+       * but the batch was not executing.  In this case, assume that the
+       * context was not at fault.
+       */
+      status = PIPE_INNOCENT_CONTEXT_RESET;
+   }
+
+   return status;
+}
+
 const struct iris_kmd_backend *i915_get_backend(void)
 {
    static const struct iris_kmd_backend i915_backend = {
@@ -220,6 +247,7 @@ const struct iris_kmd_backend *i915_get_backend(void)
       .bo_madvise = i915_bo_madvise,
       .bo_set_caching = i915_bo_set_caching,
       .gem_mmap = i915_gem_mmap,
+      .batch_check_for_reset = i915_batch_check_for_reset,
    };
    return &i915_backend;
 }

src/gallium/drivers/iris/iris_batch.c

@@ -41,6 +41,7 @@
 #include "iris_bufmgr.h"
 #include "iris_context.h"
 #include "iris_fence.h"
+#include "iris_kmd_backend.h"
 #include "iris_utrace.h"
 
 #include "drm-uapi/i915_drm.h"
@@ -775,25 +776,12 @@ enum pipe_reset_status
 iris_batch_check_for_reset(struct iris_batch *batch)
 {
    struct iris_screen *screen = batch->screen;
-   enum pipe_reset_status status = PIPE_NO_RESET;
-   struct drm_i915_reset_stats stats = { .ctx_id = batch->ctx_id };
-
-   if (intel_ioctl(screen->fd, DRM_IOCTL_I915_GET_RESET_STATS, &stats))
-      DBG("DRM_IOCTL_I915_GET_RESET_STATS failed: %s\n", strerror(errno));
-
-   if (stats.batch_active != 0) {
-      /* A reset was observed while a batch from this hardware context was
-       * executing.  Assume that this context was at fault.
-       */
-      status = PIPE_GUILTY_CONTEXT_RESET;
-   } else if (stats.batch_pending != 0) {
-      /* A reset was observed while a batch from this context was in progress,
-       * but the batch was not executing.  In this case, assume that the
-       * context was not at fault.
-       */
-      status = PIPE_INNOCENT_CONTEXT_RESET;
-   }
+   struct iris_bufmgr *bufmgr = screen->bufmgr;
+   const struct iris_kmd_backend *backend;
+   enum pipe_reset_status status;
 
+   backend = iris_bufmgr_get_kernel_driver_backend(bufmgr);
+   status = backend->batch_check_for_reset(batch);
    if (status != PIPE_NO_RESET) {
       /* Our context is likely banned, or at least in an unknown state.
        * Throw it away and start with a fresh context.  Ideally this may

src/gallium/drivers/iris/iris_bufmgr.c

@@ -2483,3 +2483,9 @@ iris_bufmgr_get_device_info(struct iris_bufmgr *bufmgr)
 {
    return &bufmgr->devinfo;
 }
+
+const struct iris_kmd_backend *
+iris_bufmgr_get_kernel_driver_backend(struct iris_bufmgr *bufmgr)
+{
+   return bufmgr->kmd_backend;
+}

src/gallium/drivers/iris/iris_bufmgr.h

@@ -582,6 +582,8 @@ uint32_t iris_upload_border_color(struct iris_border_color_pool *pool,
 uint64_t iris_bufmgr_vram_size(struct iris_bufmgr *bufmgr);
 uint64_t iris_bufmgr_sram_size(struct iris_bufmgr *bufmgr);
 const struct intel_device_info *iris_bufmgr_get_device_info(struct iris_bufmgr *bufmgr);
+const struct iris_kmd_backend *
+iris_bufmgr_get_kernel_driver_backend(struct iris_bufmgr *bufmgr);
 
 enum iris_madvice {
    IRIS_MADVICE_WILL_NEED = 0,

src/gallium/drivers/iris/iris_kmd_backend.h

@@ -28,6 +28,7 @@
 #include "dev/intel_device_info.h"
 #include "dev/intel_kmd.h"
 
+struct iris_batch;
 struct iris_bo;
 struct iris_bufmgr;
 enum iris_heap;
@@ -41,6 +42,7 @@ struct iris_kmd_backend {
    bool (*bo_madvise)(struct iris_bo *bo, enum iris_madvice state);
    int (*bo_set_caching)(struct iris_bo *bo, bool cached);
    void *(*gem_mmap)(struct iris_bufmgr *bufmgr, struct iris_bo *bo);
+   enum pipe_reset_status (*batch_check_for_reset)(struct iris_batch *batch);
 };
 
 const struct iris_kmd_backend *